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Best basement waterproofing pros near Illiopolis, IL

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Top-Rated Basement waterproofing pros in Illiopolis - Updated Nov 2026

Sure Dry Waterproofing
4.8(
97
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Illiopolis, IL and surrounding areas

Approved

In business since 1979

Free estimates

Emergency services offered

"Don Felton and his team arrived on time each day, were respectful of my home, laid down cloths to protect my carpeting, treated me with respect, did an excellent job of waterproofing my basement and cleaned up after themselves. In addition, Don kept me apprised of the progress and cleaned my porch and brick wall better than it has ever been cleaned."
Response time8 hrs
9 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for Foundation Recovery Systems
Foundation Recovery Systems
3.8(
351
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Illiopolis, IL and surrounding areas

Approved (Corporate)

In business since 1992

Free estimates

Warranties offered

"We were pleased with the customer service, skill set and careful attention provided by Indiana Foundation during last week's waterproofing work on our basement. Josh Solomon and Noah Salisbury were diligent in their attention to our questions and concerns, going the extra mile to ensure a quality installation that met our needs. Our basement is already drier and we hope to build it out for a play/rec room soon."
Basement
Basement
Basement
Basement
Concrete

+16

257 neighbors recently requested a quote
Recommended by59%of homeowners
Sure Dry Waterproofing
5.0(
6
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Illiopolis, IL and surrounding areas

In business since 1979

"I anticipated a major repair bill for a leak in my basement wall. Very honest. Spotted the problem easily and saved me from a major repair and a huge bill. I will contact this business again when I'm ready to do additional work."
Recommended by100%of homeowners
Showing 1-10 of 28
Basement Waterproofing FAQs, answered by experts

Venting the crawl space can be a good alternative to encapsulation if you live in a dry climate and the moisture problem isn’t severe. You could also try a dehumidifier or install a vapor barrier on the floor, leaving the walls exposed. A new drainage system may eliminate the moisture problem if it is not caused by humidity.

Water that pools under pavers can erode the soil foundation and weaken the paver structure. In some situations, it can also cause mold and mildew growth. If that happens, you may need to start budgeting for the cost to build and install a patio to replace the damaged one.

The purpose of soffits is to circulate air, so a blocked soffit means the air in your attic becomes stagnant. This can lead to a number of problems, mostly moisture-related, that can cause damage to your health and your home. The good news is that unclogging soffits is relatively straightforward, and if your attic is easy to access, an easy DIY project.

Make sure you're calling in the right expert to help repair and/or clean your crawl space. A serious issue may require multiple experts that include a local mold remediation pro, an HVAC pro, a foundation pro, and a plumber. You should also consider using a nearby junk removal service to avoid handling debris that could be covered in mold, fungi, rot, or asbestos.

In most climates, contractors recommend closing your crawl space vents in winter. Keeping them shut protects your crawl space from freezing temperatures, pests, and cool breezes that can lead to chilly floors in your home. However, it's often best to speak with a local crawl space team about your specific design and its relationship to the winter season.

The Illiopolis, IL homeowners’ guide to basement waterproofing services

From average costs to expert advice, get all the answers you need to get your job done.